Cannot update Video Drivers past ATI 8.56.1.4

This is my first time posting but I've been fighting this issue since I installed Windows 7

After installing Win 7 I'm unable to use my TV (connected via S-Video) in addition to other periodic glitches. I've been trying to update to the latest ATI driver (9.3) however when trying to install the software I keep receiving the error "Failed to load detection driver" I've tried removing the drivers then reinstalling them during normal windows boot-up as well as safe mode, I've tried also installing C++ 2008 SP1 redistributable but had no luck with that either. I've exhausted about every troubleshooting method I can think of and am out of ideas, any help someone can provide would be appreciated.

Run the first of the .exe files in that folder, and it will install the drivers.

Thanks for the input, however all I have are .msi files in that location, I even downloaded 9.2 and still only saw .msi files available. Do you have a location where you downloaded the package you have with the .exe's?

Whenever the install manager comes into play the driver load errors out, I've tried selecting the both of the .inf files listed in that directory and see a list of ATI cards however my X1900 isn't listed in there

This does indeed work by eiting the .inf file and following the procedure outlined in the link supplied by Novarro99. I had the same isue and spent hours trying to get th driver installed in lieu of the update-supplied M/S driver for my X1950 Pro.